List of prehistoric mammals Pappotherium Asiatherium Sinodelphys Stagodontidae Atokatheridium Chulpasia Australohyaena Andinodelphys Deltatheroides Gurlin Tsav skull Deltatheridium Herpetotherium Polydolopimorphia Antarctodolops Peratherium Fredszalaya Siamoperadectes Arminiheringia Unnuakomys Arcantiodelphys Scalaridelphys Argyrolagus Prothylacinus Proborhyaenidae Hondalagus Anatoliadelphys Mayulestes Mimoperadectes Deltatheroida Herpetotheriidae Alphadontidae Paraborhyaena Proborhyaena Tsagandelta Patagosmilus Oklatheridium Nanocuris Albertatherium Callistoe Holoclemensia Gurbanodelta Maastrichtidelphys Eodelphis Lotheridium Pharsophorus Alphadon Bonapartherium Puc…

cadelphys Borhyaena Peradectes Peradectidae Cladosictis Borhyaenidae Hondonadia Protalphadon Thylacosmilidae Deltatheridiidae Epidolops Sulestes Amphiperatherium Thylacosmilus Sparassodonta Divisaderan Didelphodon Sarmiento Formation